import re
import json
from typing import Optional, Union

from multi_swe_bench.harness.image import Config, File, Image
from multi_swe_bench.harness.instance import Instance, TestResult
from multi_swe_bench.harness.pull_request import PullRequest


class ImageDefault(Image):
    def __init__(self, pr: PullRequest, config: Config):
        self._pr = pr
        self._config = config

    @property
    def pr(self) -> PullRequest:
        return self._pr

    @property
    def config(self) -> Config:
        return self._config

    def dependency(self) -> str:
        return "python:3.11-slim"

    def image_prefix(self) -> str:
        return "envagent"

    def image_tag(self) -> str:
        return f"pr-{self.pr.number}"

    def workdir(self) -> str:
        return f"pr-{self.pr.number}"

    def files(self) -> list[File]:
        repo_name = self.pr.repo
        return [
            File(
                ".",
                "fix.patch",
                f"{self.pr.fix_patch}",
            ),
            File(
                ".",
                "test.patch",
                f"{self.pr.test_patch}",
            ),
            File(
                ".",
                "prepare.sh",
                """ls -F
###ACTION_DELIMITER###
pip install .[test_all]
###ACTION_DELIMITER###
apt-get install -y gcc
###ACTION_DELIMITER###
apt-get update
###ACTION_DELIMITER###
apt-get install -y gcc
###ACTION_DELIMITER###
pip install .[test_all]
###ACTION_DELIMITER###

###ACTION_DELIMITER###
pytest --pyargs astropy
###ACTION_DELIMITER###

###ACTION_DELIMITER###
pip install tox
###ACTION_DELIMITER###
tox -e py311-test
###ACTION_DELIMITER###
echo "tox -e py311-test" > test_commands.sh""",
            ),
            File(
                ".",
                "run.sh",
                """#!/bin/bash
cd /home/[[REPO_NAME]]
tox -e py311-test

""".replace("[[REPO_NAME]]", repo_name),
            ),
            File(
                ".",
                "test-run.sh",
                """#!/bin/bash
cd /home/[[REPO_NAME]]
if ! git -C /home/[[REPO_NAME]] apply --whitespace=nowarn /home/test.patch; then
    echo "Error: git apply failed" >&2
    exit 1  
fi
tox -e py311-test

""".replace("[[REPO_NAME]]", repo_name),
            ),
            File(
                ".",
                "fix-run.sh",
                """#!/bin/bash
cd /home/[[REPO_NAME]]
if ! git -C /home/[[REPO_NAME]] apply --whitespace=nowarn  /home/test.patch /home/fix.patch; then
    echo "Error: git apply failed" >&2
    exit 1  
fi
tox -e py311-test

""".replace("[[REPO_NAME]]", repo_name),
            ),
        ]

    def dockerfile(self) -> str:
        copy_commands = ""
        for file in self.files():
            copy_commands += f"COPY {file.name} /home/\n"

        dockerfile_content = """
# This is a template for creating a Dockerfile to test patches
# LLM should fill in the appropriate values based on the context

# Choose an appropriate base image based on the project's requirements - replace [base image] with actual base image
# For example: FROM ubuntu:**, FROM python:**, FROM node:**, FROM centos:**, etc.
FROM python:3.11-slim

## Set noninteractive
ENV DEBIAN_FRONTEND=noninteractive

# Install basic requirements
# For example: RUN apt-get update && apt-get install -y git
# For example: RUN yum install -y git
# For example: RUN apk add --no-cache git
RUN apt-get update && apt-get install -y git

# Ensure bash is available
RUN if [ ! -f /bin/bash ]; then         if command -v apk >/dev/null 2>&1; then             apk add --no-cache bash;         elif command -v apt-get >/dev/null 2>&1; then             apt-get update && apt-get install -y bash;         elif command -v yum >/dev/null 2>&1; then             yum install -y bash;         else             exit 1;         fi     fi

WORKDIR /home/
COPY fix.patch /home/
COPY test.patch /home/
RUN git clone https://github.com/astropy/astropy.git /home/astropy

WORKDIR /home/astropy
RUN git reset --hard
RUN git checkout {pr.base.sha}
"""
        dockerfile_content += f"""
{copy_commands}
"""
        return dockerfile_content.format(pr=self.pr)


@Instance.register("astropy", "astropy_18265_to_18048")
class ASTROPY_18265_TO_18048(Instance):
    def __init__(self, pr: PullRequest, config: Config, *args, **kwargs):
        super().__init__()
        self._pr = pr
        self._config = config

    @property
    def pr(self) -> PullRequest:
        return self._pr

    def dependency(self) -> Optional[Image]:
        return ImageDefault(self.pr, self._config)

    def run(self, run_cmd: str = "") -> str:
        if run_cmd:
            return run_cmd

        return "bash /home/run.sh"

    def test_patch_run(self, test_patch_run_cmd: str = "") -> str:
        if test_patch_run_cmd:
            return test_patch_run_cmd

        return "bash /home/test-run.sh"

    def fix_patch_run(self, fix_patch_run_cmd: str = "") -> str:
        if fix_patch_run_cmd:
            return fix_patch_run_cmd

        return "bash /home/fix-run.sh"

    def parse_log(self, log: str) -> TestResult:
        passed_tests = set()
        failed_tests = set()
        skipped_tests = set()
        import re

        ansi_escape = re.compile(r"\x1b\[[0-9;]*m")
        log_no_ansi = ansi_escape.sub("", log)
        test_file = None
        # This pattern is to find file paths of tests
        test_file_pattern = re.compile(r"([\w\.\-\/]+\.(?:py|rst))")
        # This pattern is to find status characters
        status_pattern = re.compile(r"([\.sFxX])")
        for line in log_no_ansi.splitlines():
            # remote line number, e.g. [  1], and percentage, e.g. [ 10%]
            line = re.sub(r"^\s*\[\s*\d+\]\s*", "", line)
            line = re.sub(r"\s*\[\s*\d+%\].*$", "", line).strip()
            file_match = test_file_pattern.search(line)
            if file_match:
                test_file = file_match.group(1)
                line = line[file_match.end() :]
            if test_file:
                statuses = "".join(status_pattern.findall(line))
                for status in statuses:
                    if status == "F":
                        failed_tests.add(test_file)
                    # pytest uses 'x' for xfail (expected failure) and 's' for skip.
                    # Both are considered "skipped" for this problem.
                    elif status in ("s", "x", "X"):
                        skipped_tests.add(test_file)
                    elif status == ".":
                        passed_tests.add(test_file)
        # Deconflict the sets. A failed test can't be passed or skipped.
        # A skipped test can't be passed.
        passed_tests -= failed_tests
        passed_tests -= skipped_tests
        skipped_tests -= failed_tests
        parsed_results = {
            "passed_tests": passed_tests,
            "failed_tests": failed_tests,
            "skipped_tests": skipped_tests,
        }

        return TestResult(
            passed_count=len(passed_tests),
            failed_count=len(failed_tests),
            skipped_count=len(skipped_tests),
            passed_tests=passed_tests,
            failed_tests=failed_tests,
            skipped_tests=skipped_tests,
        )
